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淮南矿区老区大倾角煤层工作面较多,其A组煤层开采过程中受到底板灰岩水的威胁,需提前进行探测与处理,但大倾角条件下直流电穿透方法适用性需要得到确认。论文结合大倾角A组煤层工作面开采地质条件,进行物理模型构建及测试实验,并通过现场探查实践,对双巷并行电透视成像方法进行研究,获得了三维电透视数据采集、处理与反演关键技术认识。认为通过三维全空间电穿透数据采集及处理,对底板岩层富水特征探查分辨具有良好的效果,可为大倾角煤层工作面防治水技术措施制定提供依据。
In the old area of Huainan mining area, the coal face with large dip angle has more faces, and the coal seam A of group A is threatened by the limestone water in the mining process. It needs to be detected and treated in advance. However, the applicability of DC penetration method under large dip angle needs to be confirmed. Combining with the mining geological conditions of the coal seam working face in Group A, the physical model construction and test experiment are carried out. Through the field exploration practice, the parallel electrical double vision imaging method is studied, and the three-dimensional electrochromic data acquisition, processing and inversion Key technical knowledge. It is considered that the data acquisition and processing through three-dimensional full-space electroporation have good effect on exploration and resolution of water-rich features of floor rock strata, and provide a basis for the formulation of technical measures for prevention and control of water in coal face with large dip angle.